Clock



Feb. 24. 1925.

4 ,1,527,453 H. J. TREGANZA CLOCK Find Feb`. 21. 1924 Z NVE/WOR,

/TW PW A TTORNE Ys.

Patented Feb. 24, 1925.

UNITED STATES PATENT OFFICE.

HOWARD J. TREGANZA, OF BROOKLYN, NEW' YORK, ASSIGNOR TO ANSON'IA CLOCK COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF CONNECTICUT.

CLOCK.

Application filed February 21, 1924. Serial No. 694,248.

To all whom t may concern.' v

Be it known that I, HOWARD J. TREGANZA, a citizen of the United States, and a resident of Brooklyn, in the borough of Brooklyn, county of Kings, city and State of New York, have invented a. certain new and useful Clock, of which the following is aI speci- I'ication.

The invention relates to clocks of the balance wheel type, and particularlyv to the regulating mechanism thereof, and has for its objects to produce a time piece in which the regulating scale and pointer or index are more conveniently located than in clocks at present in use, whereby regulating may` be accomplished with less elfort and with less eye-strain. v

A further object is to provide means whereby regulation may be effected with greater accuracy.

A further object is to remove the manually operated part of the regulating mechanism from the scale.

A further object is to construct the manually operated portion of the regulating mechanism of such strong and rugged character that it will not be easily bent or broken.

A still further obj ect is toprovide means whereby the scale will not beobliterated or obscured.

A still further object is to provide means whereby themovement of the pointer or -index will be relatively to that of the man-A ually operated element of the regulating mechanism. Y

These and further objects will more fully appear in the following specification and accompanying drawings considered together or separately.

One embodiment of the invention is illustrated in the accompanying drawings, in which like parts in all of the several figures are designated by corresponding characters of reference, and in which- Fig. 1 is a front elevation of a portion of a clock movement showing a. frame, the balance wheel, the hair spring and the regulating mechanism.

Fig. 2 is a horizontal sectional view of a portion of a clock casing taken on a line indicated by 2-2 of Fig. 3.

Fig. 3 is a front elevation of the dial illustrating the scale and the pointer or index.

Fig. t is a detail end elevation of a portion of the regulating mechanism, and

Fig. 5 is a detail view of a modification.

In the drawings 1 designates the front movement frame member, and 2 the rear frame member. The members are spaced apart and secured to the back plate 3 of a clock casing by means of pillars 4f, and the movement proper 5 is positioned between the members, as is common.

Loosely pivoted in the upper part of the fra-me is the balance wheel arbor 6 carrying the usual balance wheel 7, and to which one end of the hair-spring 8 is secured. The Opposite end of the spring is secured to a keeper 9 forming part of the frame 1. The balance wheel is oscillated in the usual manner by means of a lever 10 operated by the usual pallet and pallet wheel.

Rotatably mounted on the frame 1, and in axial alinement with the arbor 6 is a seotor 11 carrying the usual stirrup 12 through which the outer convolution of the spring 8 passes, and by means of which the effective length of the spring is adjusted. The sector 11 also carries projecting therefrom an arm 18 which projects through a segmental slot 111 in the bottom of the dial pan 15, and through a similar slot in the dial card 16. On the end of the arm 13 is a pointer or index 17, and below the slot in the dial card is a scale 18 with which the index cooperates. The index is usually at right angles to the arm 13, and to permit of its passage through the slot 111 in order to be visible from the front, a notch 19 is formed in one side of the slot, as shown.

One edge of the sector 11 carries a curved rack 2O which is engaged by a toothed element 21 carried at one end of a shaft 22 journaled in, and extending through the frames 1 and 2. That end of the shaft opposite the element 21 extends through the back plate 4 and is provided with an operback plate ating member, as for example, a Wing head It Will be understood that the clock setting knob 24 together with other manually operated elements of the clock, such as the Winding knob or knobs, and alarm setting and cut out elements, if used, also are on the In the embodimentof the invention illus-V trated in Figs. 1, 2 and 4, the lever 11 is geared dovvn relatively to the shaft 22tvhereby the rota-ry movement of the head 23 -Will be greater than that ofthe lever. e

In the modification illustrated in Fig. 5 the movementof the member 11a, Which is illustrated as in the form of a pinion, is accelerated relatively to that of therelement V21a, whereby the stirrup 12a and index 17 maybe movedby the engagement of theteeth 20a and 22, and the sloty through which the Y pointer projects may bemade longer Whereby closer regulation maybe accomplished.

.It is to be understood lthe rack 2O and element 21 'may be of` any other suitableradial Y lengths if desired. f

By placing the scale on the dial of the clock thesame Will be as easily visible as the hour, minute and second markings, and of the alarm setting markings, when used. The markings of the scales being behind the glass 24 will be protected from dust and dirt,.and the glass 4will prevent the entrance y of dust or .dirt through the slot.

The manually operated lpart, the head `28, of the regulating is situated on the back of .l the clock casing, as are all of theother manually operated parts off the clock, Where it is natural to look Vfor such elements, and the indicator is on the dialwhere it isnatural to look for all of the elements Which may be operated from the back.

The arm13 and index 17 may be as light or lighter than those at present in use, and as they are not handled by the operator, there' will be no danger of breaking them. The sector 11, the element 21, the shaft 22 and the head 23 may be made asstrong and rigid as required to permit of rough handling. v

In accordance with the provisions of the patent statutes the principle of the invention has been described, together with the apparatus which is now considered to rep- .resent the best embodiment thereof, but it prising indicating meansv andv operating means therefor, said means being spaced 2. In a clock, regulating mechanism com-v prising indicating means and operating means therefor, said means being spaced apart, the indicating means being 'located at and visibleffrom the Vfront of the clock, the operating means being located at the back 'of the clock. Y f s 3. In a clock, `regulating mechanism comprising indicating means and operating means therefor, said means being spaced apart, the indicating means being located at and'visible from the front of the clock, the operating means being located at the back VVof the clock and outside of the clock casing.

4. In a clock having .a casing and a dial visible through the casing, regulating'mechanism comprising indicatingrmeans and op-VA tending through the dial, .and said operat- 3 ing means extending through that'portion of the casing opposite the dial.

5. A clockhaving a frame,.a movement r carried by the frame a dial carried by the4 frame, said movement comprising a balance Wheel and a-balance spring, aleverpivoted to the frame atone side of the movement, said lever engaging'the spring, a pointerY carried by the lever, said pointer passing through' the dial, a shaft, connections `between the shaft and lever for moving the'latter, and means carried by the shaft forl rotating the same, said rotating means being on 'the opposite side of the movement fromthe lever. 6. A clock having a frame, a movement carried in the frame, a Adial 'carried bythe frame, there being asegmental lslot in the dial, graduations on the dial in proximity to the slo-t, said movement comprising a bal ance Wheel and a balance spring, a lever pivoted to the frame, a stirrup carried by the lever and through Which the spring passes, an arm carried bythe leve-r, saidy arm extending through the slot, a rangeV of gearfteeth on the lever, lashaft.jou'rnaled in the frame, a range of gear-teeth on the shaft, said ranges being in meshand meansV forrotating the shaft, said means being lo-l cated on the opposite side of the movement' from the lever.

7. A clock Yhaving a frame, Ya `'movement carried in the frame, a dial carriedV bythe frame, there being a segmental slot in the dial,V graduations on theV dial in proximity to the slot, said movement comprising a balance Wheel and a Vbalance spring, a lever pivoted to the frame, a stirrup carried by the 'lever and Vthrough which the spring passes, an arm carried by tbelever, said arm extending through the slot, a range of gearteeth on the lever, a shaft journaled vin vthe frame, Aa. range of gear-teethron the shaft,

said ranges being infmesh,and means for This specification signed and witnessed this 15th day 0f February, 1924.

HOWARD J. TREGANZA.

Witnesses: i

GABRmL LYNCH, J. S. LOTT. 

